Thanks for the tip Sleuthesthedead. Yes, I know Karen Hett - we are partners and have worked together for a few years on the family tree and she did not recognize these photos.
I think they maybe friends instead of family? I was in contact with Bottineau County Historical Society today, and they agreed to look at the photos. I'm chasing a small clue - they may not be from Bottineau at all. I will be very happy to have them identified.